I need y’all’s advice.

I feel like my life is in shambles. I’m 24 years oldZ a preachers daughter.. my parents are religious & they believe right is right, wrong is wrong. I’m going through a pregnancy scare right now. My period is supposed to come on next Wednesday. I’m afraid it won’t and I have a tendency to overthink things. Well I currently live with them. I have a boyfriend, he’s 27 years old. My parents and bf have a WONDERFUL relationship. I’m scared of the outcome if I did become pregnant. I take full responsibility of my actions. I pray I am not but I feel like I’m living my life to please them. I can’t talk to my mom about certain things because I’m afraid she will fuss etc.. I just wish I had that open communication with my parents and them understand that I am human and a ADULT. I feel like I get treated as a child because I still live in there house. So me and my bf talked about if I did fall pregnant, we would buy a house and I would move out with him, together. But in my parents eyes that’s “shacking” and it’s wrong to them but I don’t wanna lose that relationship with them if I did move out with him. I just wish I didn’t put myself in this predicament.